The Bogor-Depok-Bekasi (Bodebek) region is a suburb of the Capital City of Jakarta located in West Java Province and part of the West Java development area (WP) 1, this region has experienced rapid regional development and economic growth due to the urbanization process in Jakarta. The development of this region was marked by the growth of Gross Regional Domestic Product (GRDP) of 42.08% and population increase of 19.54% during the period 2010-2016. However, developments in the Bodebek region have led to the formation of sprawl areas in several areas, leading to unsustainability and leading to the conversion of agricultural land. This study aims to 1) Identify and project Gross Domestic Regional Products (GDRP) growth and population based on a growth model approach using using simple regression equation; 2) Identify the spatial pattern of built-up areas in the Bodebek region by using the Moran index and the Local Indicator of Spatial Association (LISA); and 3) Identify development patterns in the Bodebek region using cluster analysis. The results of this study indicate that built-up areas in the Bodebek region are concentrated (clustered) in the core urban area of the Bodebek Region and its surroundings. In addition, population and GDRP growth in the Bodebek region follow the saturation growth model. Based on the result of cluster analysis, there are 3 clusters in the Bodebek region based on social, economic, population and land use data.
Cekungan Bandung Urban Region is a national strategic area from the point of economic interest. Rapid economic growth in the region has led to increased population growth and Built-up land use. Increased use of built up land in urban areas can cause urban sprawl which can have serious impacts that will damage the structure and function of urban area ecosystems, thus hampering the development of regional sustainability. Landscape Metrics can be used to analyze the urban form of the Cekungan Bandung Area in time series from 1983-2015 so that it can identify the changing trends. The results of the analysis show that during this period urban growth in the Cekungan Bandung Area showed a positive trend with a compact, connected, un-fragmented and near-square urban form. Being a concern of Patch Density (PD) and CONTIG values because it shows an increasing number of patches so that patches are more fragmented and the distance between the built up patches shows the trend is increasingly scattered on the edges of the Cekungan Bandung Area which can cause urban sprawl.
Jabodetabek and Greater Bandung areas experiencing the phenomenon of urban expansion which has caused both metropolitan areas to be more connected and become a mega-urban area by a corridor through a conurbation process. Karawang regency is part of the region in the Jakarta-Bandung mega-urban corridor. Vegetated lands in Karawang Regency are threatened by land conversion as a result of the Jakarta-Bandung conurbation process which tends to trigger the formation of the Jakarta-Bandung Mega-Urban Region. The increasing population in Karawang Regency has increasingly triggered the conversion of vegetated lands into built-up lands so that it can cause the region to be prone to anthropogenic disasters such as flood because of water catchment areas that reduced. The aims of this study are to analyze the land cover changes that occured in Karawang Regency in 2005–2015 and 2015–2025 and mapping the floodprone areas in Karawang Regency. Land cover changes analysis is carried out by overlapping Landsat Imagery of land cover in the 2005 and 2015 and 2015 and 2025 based on projection results using CA-Markov method. Mapping the floodprone areas is carried out by a Weighted Overlay process on variables or factors that are considered influential on the occurrence of floods. Karawang Regency has experienced an increase in land use change, especially changes in vegetated lands to built-up lands from year to year. Flood-prone areas analysis result in Karawang Regency show that most of the total area of Karawang Regency is classified as high and moderate classification flood-prone areas.
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